Gis series and huge box coliders

first_4277

hello.
I am trying to import an asset from Daz studio to unreal engine 4
Unreal says it takes dbx of 2014.
Which i export to
When I import the model, or more properly (PORT OF) the model, the arch part.
There is a huge un needed box collider portion to the arch (it takes up half of the room that I made for it) I am guessing itis a place holder for the rest of the interior package. where I just need the archway.
I am wondering is there a way in daz studio, if it's the export options or a simple solution in the modeling stage that will let me turn off this collider?

Thank yoU!
--Joshua